HORSE n.
-- called also horsehoe vetch, from the peculiar shape of its pods. -- Iron horse, a locomotive. [Colloq.] -- Salt horse, the sailor's name for salt beef. -- To look a gift horse in the mouth, to examine the mouth of a horse which has been received as a gift, in order to ascertain his age; -- hence, to accept favors…
IMPEDANCE n.
logous to the actual electrical resistance to a direct current, being the ratio of electromotive force to the current. It is equal to R2 + X2, where R = ohmic resistance, X = reactance. For an inductive circuit, X = 2pfL, where f = frequency and L = self-inductance; for a circuit with capacity X = 1 ÷ 2pfC, where C = c…
IMPENETRABLE a.
, as to knowledge, reason, sympathy, etc.; unimpressible; not to be moved by arguments or motives; as, an impenetrable mind, or heart. They will be credulous in all affairs of life, but impenetrable by a sermon of the gospel. Jer. Taylor.
INCENTIVE n.
has a tendency to incite, to determination or action; that which prompts to good or ill; motive; spur; as, the love of money, and the desire of promotion, are two powerful incentives to action. The greatest obstacles, the greatest terrors that come in their way, are so far from making them quit the work they had begun…